Side disk terracing machine



April 18, 1944. H. HOLLIS SIDE DISK TERRACING MACHINE 3 Sheets-Sheet 1Original Filed Jfily 16, 1941 April 1-8, 1944. HOLLIS Re. 22,471

SIDE DISK TERRACING MACHINE v Original Filed July 16, 1941 I5Sheets-Sheet 2 INVENTOR. Wzrzeza yauiksz yxwiw fi sy April-l8, 1944.HOLLIS Re. 22,471

SIDE DISK TERRAGING MACHINE Original Filed July 16, 1941 3 Sheets-Sheet3 a INVEN TOR.

Reissued Apr. 18, 1944 SIDE DISK TERRACING MACHINE Homer Hollis, Lillie,La., assignor to G. A. Kelly Plow Company, Longview,

of Texas Tex., a corporation Original No. 2,295,898, dated September 15,1942,

Serial No. 402,673, July 16, 1941. for reissue September 13, 1943,

15 Claims.

This invention relates to a terracing machine, the general object of theinvention being to provide a disk plow so supported that it operatesbetween the front and rear wheels of a tractor or four wheel vehicle,with means for adjusting the parts to different positions.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawings, wherein like characters denote like orcorresponding parts throughout the several views, and in which:

Figure 1 is a top plan view of a tractor showing the invention in usethereon.

Fig. 2 is a side elevational view of Fig, parts of the tractor omitted.

Fig. 3 is a diagrammatic view of parts of the invention removed from thetractor.

Fig. 4 is a fragmentary sectional view showin how the disk is connectedto its supporting shaft.

Fig. 5 is a view of the supporting beam.

Fig. 6 is a view of the upright to which the front end of the beam isconnected.

In these views the letter T indicates a tractor which, in the presentinstance, has been shown as being equipped with a hydraulic type poweroperated lift mechanism of well-known commercial form and also disclosedspecifically in Henry G. Ferguson Patent No. 2,118,180, issued May 24,1938. This hydraulic lift mechanism comprises 1 With vertically swingingcrank arms 6 and 35 on the upper rear portion of the tractor and whichare used in manipulating my novel plow attachment for tractors generallyin a manner, which will hereinafter appear, this particular tractorhaving been chosen for illustration simply by way f ex mp e of onewell-known form which is suitable for th purpose.

In carrying out the invention the plow is desirably supported, in part,from the front portion of the tractor in order that the plow shall riseand fall with the rise and fall of the fore portion of the tractor inpassing over the contour of the ground. As to the details of theexemplary mounting, an upright member I is fastened to the front axle ofthe tractor at one side thereof and a link 2 is pivoted at the upper endof this member I and the front end of a. beam 3 is pivoted to the lowerend of the link so that the beam can move forwardly and rearwardly as itis moved up and down by the lifter arm 6, where-- 65 Application SerialNo.

by the motion of the beam 3 is accommodated to the fore and aft movementof the arm 6 which is incident to the vertical swinging of the latter.The rear end of the beam is formed with a laterally extending arm 4which has a sleeve 5 thereon which is connected to the arm 6 formingpart of the hydraulic lift means of the tractor or if the tractor doesnot have this hydraulic lift means then the beam can be raised andlowered by other means. From the lifting beam 3, the plow proper issuspended in the manner next described.

The disk plow is shown at I and has its shank 8 rotatably arranged in asocketed part 9 of a shaft or pusher bar Hi, the part 9 being arrangedat an angle to the longitudinal axis of the shaft as shown moreparticularly in Fig. 4. A collar 1 I encircles a part of the beam 3 andcan be adjusted toward and away from the center of the beam and a chainl2 or other flexible member depends from the collar and is connected tothe shaft in so that this flexible member 12 suspends the front end ofthe shaft II) from the beam 3. A bracket I3 is fastened to a side partof the tractor, preferably the rear axle thereof at one end thereof andhas an arm l4 thereon to which is pivoted a bar l5 the other end ofwhich is provided with a plurality of holes l6 any one of which isadapted to receive a bolt [1 which passes through an ear 18 on the shaftIll. The bar [5 in its assembled position serves as a tension brace toprevent the plow 1 from being pushed sidewise under the tractor due tothe reaction of the dirt on the plow 1. Also because of its specialposition it increases the backward thrust on shaft in to furtherfacilitate the operation of the controls of the hydraulic lift device onthe tractor to which the rear end of the shaft I 0 isconnected, as willappear below.

The rear end of the shaft in loosely fits in a ring 19 formed on thelower end of an upstanding member or link 2!], collars 2i fastened tothe shaft Hl holding the said end of the shaft in position in the ringl9. lArcuate members 22 are fastened to an intermediate part of themember 20 and the front ends of these arcuate members 22 are fas tenedto rear portions of the tractor as at 23 so that these members 22 canswing upwardly and downwardly. This vertical swinging motion of thebail-like structure or frame 22 accommodates the vertical displacementof the link 20 incident to its transmission of the fore and aft motionof the shaft or pusher bar H! to the control elements connected to theupper end of the link or member 20. The upper end of the member 20 isconnected 'one position to the other.

by a pin 24a passing through hole 24b in such member (see Fig. 3) to apair of bell cranks 24, which are in turn connected with the springmember 25 supported from a part of the hydraulic means. Details of thishydraulic means are welllcnown in the art and are set forth, forexample, in the Ferguson patent identified above. Sufiice it to say herethat the spring 25 is the usual com pression spring provided in suchinstallations and tends to swing the bell crank 24 outward. Attached tothe bell crank is the usual control plunger 25a passing through thespring 25 and controlling, by its axial movement, the admissionor'exhaust of pressure fluid for the hydraulic mechanism. As is Wellunderstood, the arms remain at rest so long as the pressure on theplunger 25a is at a predetermined value fiXedbythe spring 25, but uponan increase in the pressure on the plunger 25a above such predeterminedvalue, its resultant shift of the plunger causes the arms Band '35 to beswung upward, whereas a diminution in pressure onth'e pl'unger belowsuch predetermined value fa-uses the arms to lower a correspondingpredetermined am'ount. That being the case, it will thus beseen thattheground reaction onthe plow disk 1 is transmittedas thrust through thepusher an or 'shaftlt and reacts on the spring urged 'piun'ge'r 25a,through the link 20, to vary the depth of "penetration of the disk Iautomaticall'y, wherefore a substantially constant draft load ismaintained.

To facilitate angular or rotational adjustment of the shaft lfl'inchanging the angle 'of'entry of the plow disk 'l'i'nto theg'round, aquadrant 261s :attachedby'abracket z'l to'a/part'of the-memberifll'a-hda hand lever 28 isipivotedtothe bracket 21 as at 29 and has adetentfill cooperating with the teeth of the bracket. A bar 3 l has its*upper end 'adj'u'st'aldly connected with theleVer 'ZB by a bolt 32engagingany one of a row of holes-8'3 i-nthe lever andthe'lowe'r "end ofthe bar is pivoted to an arm fiwconne'cted with 'theinnercollarll sothat by adjusting'the lever ZStheshaftcanbe turned orr'ockedto'adlustthe 'disk '1.

The "numeral $5 indicates a'spring connecting.

thearm 35" of the hydraulicme'ans with a bracket 36*at'tache'd to arear'part'of the tractor. This springtendsto move thehydraulic armsdownwardlyto cause 'th'e plow to eng age the soil.

Thusby adjusting the beam3 by means of the hydraulicmeans the shaftlllandthe-disk can be raised and lowered to govern the plowing depth or toraise the "disk entirely-clearof the ground when it is desired totransport the apparatus from adjusted 'through means'of the hand lever28 to provide the right plowing angle'for'thedisk in relation to thetread line of the tractor. The bar I5 will pernnt free up and"-downmovement of the shaft 10 but holds it in fixed position against' anymovement to either side. By changing the cutting angle of the diskthrough meansof the lever "1,theiriotib'nof the right forward wheel iscarried to' the'beain 3 substantially unmodified by the motion of theleft forward wheel. This feature is of a decidedb'enefit since theforward right wheel fisfinilindwith the plow and serves as an advancedetector of the contour of the earth to be plowed.

'As willfb'e seen pressure of "the soil on the The disk can also be and.this movement is resisted by the spring means 25 acting on the upper endof the member 20, the lower end of which carries the rear end of theshaft. The transmission of the thrust on the shaft l0 through the link20 to the spring urged plunger 25a actuates the latter to raise or lowerthe plow as required to maintain a sub stantially constant draft load onthe plow.

While Fig. 4 shows one manner of rotatably supporting the plow l withthe front end of the shaft In it is to be understood that any othersuitable means-can be used for this purpose.

As the tractor moves alon with the plow I entering the soil the frictionof the soil against the plow will cause it to rotate and thus a furrowis formed in front of the rear wheel and the dirt is thrown to one sideof the tractor, the parts bein adjustable to make the furrow of varyingdepths and the plow will be caused to follow the contour of the groundas it follows the front Tight wheel which automaticall rai-sesand lowersthe plo w as the "wheel passes over high and low parts 'of the ground.The angle 'of the plow can be adjusted by partly rotating the shaft ii!by m'ea'n's of the hand lever :28.

By way of brief resume "of operation, it should be observed that duringtransport of the =plow the disk I is, as "previously noted, raisedentirely clear of the ground. For that "purpose the beam 3 is elevatedby swinging the hydraulically operated arms 6, 35' upward "to their fullextent through manipulation of the usual :manu'al control (not shown)for the hydraulic :lift idev'ice.

On arrival at the .point of use, the arms '8, :35' ara swung downward,lowering the beam 73 and the disk into'wo'rking:position. The operator,"through use of the lever :28, adjusts the angle of pl'owe'd fur-rowand, by "virtue of the mounting of the beam '3'wi'th its forward-end'positioned'torise and 'fall withsuehTrout wlreeLrtheplow isfraised andlowered bythe "beam a-s required Ito follow jthf contour of the'grbiin'd. Such contour followingmotion oftheIiTtbeam S is. in efie'ct,modifled by the *raising or"lowering of the arm '6 occasioned by theaction bf the thrust load on the "shaft 10, 'and which is "transmittedto the controls through *thelirfk 1 0. Inother words, this transmission"of the thrust load, occasioned fb'ythe ground reaction "on tl'leplowdisk "I, is

transmitted to the control of the hydraulic lifter "device andserves'twmaintain the depth of pene- "tratlon for 'the'ifplows'uchthat'a substantially uni- "plow "will tend to move the shaft oreaiwa'rdlyzws form draft load is retained despite changes in characterofthe's'oil' beingplowed, etc.

It is thought 'from't'he "foregoing description that the advantages andnovel features of the invention will be readily apparent.

n. i sto'be understood that changes may be made in the menstruation andin .thecombina- -tion and arrangement of 'the .several parts j, providedthat such changes Ifall within 'thescope of the appended v claims.

I claim as myinvention: 1.-In -a 1 four wheel vehicle, an :uprightexment with the front end of the shaft, a member depending from the beamand connected with the front part of the shaft, means for rotatablysupporting the rear end of the shaft, said shaft extending forwardly andoutwardly with the disk located substantially between the front and rearwheels at one side of the vehicle and means for raising and lowering thebeam.

2. In combination with a four wheel vehicle, an upright connected to thefront axle thereof adjacent one side thereof, a link pivoted at itsupper end to the other end of the upright, a beam having its front endpivotally connected with the lower end of the link, means for raisingand lowering the rear end of the beam, a flexible member depending fromthe beam intermediate the ends thereof, a shaft having its front portionconnected with the lower end of the flexible member, a disk rotatablyconnected with the front end of the shaft and arranged at an inclinationto the shaft, means for rotatably supporting the rear end of the shaftwith the shaft extending forwardly and outwardly with the disk arrangedsubstantially between the front and rear wheels at one side 01' thevehicle and means for rocking the shaft.

3. In combination with a tractor having hydraulic lift means, an uprightconnected with the front axle of the tractor at one side thereof, a beamhaving its front end pivotally and swing ably connected with the upperend of the upright, means for connecting the rear of the beam with thehydraulic means, a flexible member adjustably connected with anintermediate part of the beam, a disk carrying shaft having its frontend connected with the lower end of the flexible member, the disk havingits hub arranged at an inclination to the length of the shaft, means forholding the shaft against sidewise movement, means for rotatablysupporting the rear end of the shaft, a hand lever connected with thetractor, and means actuated thereby for rocking the shaft to adjust theinclination of the disk.

4. In a cultivating vehicle having a forward and a rear axle, a liftingbeam, movably connected to the forward axle and movably connected to thebody of the cultivating vehicle, a shaft, a disk rotatably connected tothe shaft, a lifting member connected to the shaft and the lifting beam,means for rotatably supporting the shaft, said shaft extending in aforwardly direction with the disk located substantially between thefront and rear axles of the cultivating vehicle and means for raisingand lowering the beam.

5. In a cultivating device for attachment to a tractor having a liftingdevice thereon, the combination of a lifting beam, means for movablyconnecting said beam to a forward portion of the tractor, a shaft, adisk rotatably connected to the shaft, a lifting member connected to theshaft and the lifting beam, means for rotatably supporting the shaft onthe tractor with the shaft extending in a forwardly direction and withthe disk thereon located substantially between the front and rear wheelsof the tractor, and means for connecting said lifting beam to thelifting device on the tractor.

6. In a terracing plow attachment for a tractor having a power actuatedlift means on its upper rear portion, the combination of a lifting beam,means for pivotally supporting the front end of the beam on the frontportion of the tractor to rise and fall with the same and with the beamextending generally rearwardly alongside the body, of the tractor, meansfor detachably connecting the rear end portion of said beam to the liftmeans on said tractor to utilize the lift means for swinging the beamvertically about its front end pivotal connection, a pusher bar havingmeans on one end portion thereof for connecting the same to the rearportion of the tractor with the bar projecting generally forwardly inposition to be thrust forward by the tractor as the latter advances, aplow disk revolubly mounted on the front of said pusher bar, and meansfor suspending the forward portion of said pusher bar from said beam tomove in a vertical direction with the latter.

7. In an implement attachment for a tractor having a power actuatedpivoted arm on its upper rear portion swingable in a fore and aftdirection as an incident to raising and lowering the same, thecombination of a lifting beam adapted to extend generally horizontallyalongside the body of the tractor, means for connecting the rear portionof the beam to the arm on the tractor for raising and lowering thereby,means including a generally vertically extending member pivotallyconnected at one end thereof to the forward end of the beam and adaptedto be pivotally connected at its other end to the fore portion of thetractor for supporting the front end of the beam to rise and fall withthe front end of the tractor while accommodating fore and aft motion ofthe beam incident to vertical movement of the beam by the arm on thetractor, a ground engaging implement, and means for supporting suchimplement, at least in part, by said beam.

8. In an implement attachment for a tractor having a power actuatedpivoted arm on its upper rear portion swingable in a fore and aftdirection as an incident to raising and lowering the same, thecombination of a lifting beam adapted to extend generally horizontallyalongside the body of the tractor, means for connecting the rear portionof the beam to the arm on the tractor for raising and lowering thereby,means including a generally vertically extending member pivotallyconnected at one end thereof to the forward end of the beam and adaptedto be pivotally connected at its other end to the fore portion of thetractor for supporting the front end of the beam to rise and fall withthe front end .of the tractor while accommodating fore and aft motion ofthe beam incident to vertical movement of the beam by the arm on thetractor, a pusher bar having means on one end portion thereof forconnecting the same to the rear portion of the tractor with the barprojecting generally forwardly in position to be thrust forward by thetractor as the latter advances, a plow disk revolubly mounted on thefront of said pusher bar, and means for suspending the forward portionof said pusher bar from said lifting beam.

9. In a cultivating attachment of the general type set forth, thecombination of lifting beam and a, pusher bar adapted to be disposed oneabove the other in the order named alongside a tractor, a flexible linesuspending the fore portion of the pusher bar from an intermediateportion of the lifting beam, a disk mounted on the forward end of thepusher bar, means for anchoring the rear end of the pusher bar on therear portion of a tractor, and means for connecting the front and rearportions of the beam respectively to the front portion and body of atractor with the beam extending generally horizontally.

10. In a disk type plow, the combination of a pusher bar having means onthe rear portion thereof for connecting it to a vehicle with the barextending forwardly and slightly laterally of the path of advance of thevehicle, a plow disk, means for revolubly supporting said disk on thefore portion of the pusher bar with the axis of revolution of the diskslightly angled with respect to the longitudinal axis of the bar andwith said axes substantially intersecting each other, and means for.rotatively adjusting said bar about its longitudinal axis to vary theangle of entry of the disk into the ground.

11. In an implement of the type set forth, the combination with arevolubleplow disk, of a support therefor rotatively adjustable about anaxis slightly inclined with respect to the axis of rev0- lution of thedisk and disposed with said axis of adjustment substantiallyintersecting said axis of revolution.

12. In a disk plow attachment for a tractor having a yieldable springdevice thereon, the combination of a pusher bar having a plow disk onits fore portion, means for supporting said pusher bar from the tractorin position to project generally forwardly beneath the tractor, andmeans including a link connecting the rear portion of said pusher bar tothe spring device on the tractor to effect ayielding resistance by thespring device to endwise motion of the pusher bar under the influence ofground reaction on said plow disk.

13. In a disk plow attachment for. a tractor, the combination of apusher bar having a plow disk on its tore portion and adapted to extendgenerially forwardly in the direction of advance of the tractor, anupstanding link connected at its lower end to the rear portionof the barand adapted to be connected at its upper end to a movable element of ahydraulic device on the tractor, and. a supporting device connected tothe intermediate portion of said link and adapted to besecured to therear of the tractor.

1.4. In .a disk plow attachment for a tractor, the combination of agenerally horizontal frame having a pair of arms shaped to embrace arear portion of the tractor and having means on such arms for pivotallyconnecting the frame to the tractor for generally vertical movement, anup standing link pivoted intermediate its ends to an intermediateportion of said fram and being adapted for connection of its upper endto amovable element of a hydraulic device on the tractor, a pusher barhaving ,a plow diskion its fore portion, and means for connecting therear end portion of the bar to the lower end of said link. and with thebar extending forwardly and laterally i beneath the frame.

,30 on its fore portion, of means for transmitting thrust from thepusher bar to the control partof the tractor.

HOMER .HOLLIS.

